Proton pump inhibitors for eosinophilic oesophagitis

Edaire Cheng

Research output: Contribution to journalReview articlepeer-review

10 Scopus citations


PURPOSE OF REVIEW: To review the significance and plausible mechanisms underlying 'proton pump inhibitor (PPI) responsive oesophageal eosinophilia' in eosinophilic oesophagitis (EoE). RECENT FINDINGS: EoE is defined as an immune-mediated clinicopathologic condition characterized by oesophageal dysfunction and eosinophil-predominant inflammation. This new conceptual definition has been proposed partly due to a recently identified disease phenotype called 'PPI-responsive oesophageal eosinophilia'. Emerging data support the possibility that this condition represents a clinical response to anti-inflammatory properties of PPIs that are independent of effects on gastric acid. SUMMARY: Currently, the diagnosis of EoE is reserved for patients with oesophageal eosinophilia and symptoms that do not respond to PPIs. This practice may not be appropriate, however, both because gastric acid suppression by PPIs might benefit EoE patients and because PPIs have anti-inflammatory properties that also might benefit EoE patients. More studies are sorely needed to understand the mechanisms underlying PPI-responsive oesophageal eosinophilia. Currently, a favourable response to PPI therapy should not be regarded as a proof of an underlying acid peptic disorder such as gastroesophageal reflux disease (GERD) nor should it preclude a diagnosis of EoE. Furthermore, it seems prudent to recommend a trial of PPI therapy for patients with oesophageal eosinophilia and symptoms, even when the diagnosis of EoE seems clear-cut.

Original languageEnglish (US)
Pages (from-to)416-420
Number of pages5
JournalCurrent Opinion in Gastroenterology
Issue number4
StatePublished - Jul 2013


  • eosinophilic oesophagitis
  • gastroesophageal reflux disease
  • proton pump inhibitors

ASJC Scopus subject areas

  • Gastroenterology


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